Shuttle



J. H. COUL R.

I I920. v

Patented Nov. 23, "1920.

i as UNITED, STATES PATENT OFFICE. p

JOSEPH n. contains, or PITTsFiELn, mssacncsn'rrs;

SHUTTLE.

To all whom it may (rower-n:

Be it known that I, Josnrn llrl. (linnmnn, a citizen of the United States, residing at Pittsiieldfin the county of Berkshire and State of Massachusetts, have invented certain new. and useful Improvements in Shuttles, oi? which the following is a specification.

This inventionrelates to shuttles; and it comprises a shuttle having the usualpivoted spindle, a spring for maintaining the spindle under tension, the spring being arranged in an opening or cut-out portion in the slinttle,said cut-out portion being .pro-

vided with a metal lining, the inetallining projecting beyond the opening or cut-out portions and surrounding the spindle pivot,

the spindle pivot being mounted in a metallic bushing in the shuttle body, means for relieving the tension on the jspindle to tacilitate Withdrawal and replacement of the spindle, and cushioning means. carried by the shuttle and engaging the hutt oi the spindle.

In thepresent invention, I have )i.'ovided improved means for supporting the s; ng by means of which the spindle maintained under tension. The provision of a metal hearing plate for the spring removes all strain from the spindlespring and eliminateswearing on the wooden portion oi the shuttle. The spindle pivot is mounted in a metallic bushing which furnishesa larger bearing surface and prolongs thelife oi the shuttle by eliminating wearing onthebody portion of the shuttle adjacent the pin.

Cushioning means are arranged. in the body portion of the shuttle adjacent the heel oi the spindle whereby shocks incidental to manipulation of the spindle when bobbins or tubes are being inserted or re moved, are taken up and wear on the wooden portion of the shuttle is minimized' lln the present invention, I have further provided means whereby the tension on the spindle may be removed when a spindle is to be replaced permitting ready removal. and

- replacement of the spindle. Heretofore, it

has been very difficult to remove andreplace the spindle, due to the pressure of the spring bearing against it. 7

In the accompanying drawings, l have shown an advantageous embodiment of the invention. In this showing:

Figure 1 is a central vertical sectional View of the invention,

spindle.-

Specification of Letters Patent. P te ted N 33, 1920' Application fil ed May 12, 1920; SrialhNo. 350,771.

Fig. 2is a horizontalsectional. r ght angles to Flg. 1, p N

Fig. is an enlarged vertical sectional View" at View ofthebase of the sh ittle, showing the invention in detail,

'viewon line l- 4: of Fig. 1, and,

Fig. 5 is detail perspective view otthe The spindle is pivoted in an opening formed in the body portion ofthe shuttle and this opening is provided with a metal bushing to minimize wear oi. the wooden portion of the shuttle surrounding the pivot.

shown, the bushing is made in two portions 3 and rtand. arranged on each side of the w p The sectlon l of the spindle is made larger than the section 3 and 13 proj vided with internal screw threads. A pivot pin Sis arranged in the bushings and passes through theusual opennig n the spindle.

As shown, the pin provided, with threads 6, adapted to engage theinternal threads of the bushing and hold it in position. The

Fig. 4c is a transverse vertical sectional headolithe pin be slo'tted, asat to permitiits removal with a screwdriver or other s iitahle tool. 1 p p The hodypoition of the sh uttle is provided with a recess 8 anda hearing.plate 9is ranged in therecess. This plate is prefer ably made of nietaland, asshown, itis snh stantially U-shaped and extends outwardly beyond the end of the recess. Elongated slots 10 are arranged in the bearing plate and are adapted to receive the pivot pin. The elongated slots are provided to permit longitudinal adjustment oi? the hearing plate, when the pressure on the spindle is removed. The spindle is maintained under pressure by coil spring 11, arranged in the recess and bearing against the bottom 12 of the U-shaped plate. A plunger 13 is arranged in the outer end of the coil. spring and is provided with a head 14, adapted to engage the end of the spindle and maintain it under tension in the usual manner.

Means are provided for cushioning the heel of the spindle and prevent it from engaging the wooden portion of the shuttle is arranged a metal tube 16. A plunger 17 7 plunger and the body portion of the spindle.

By the provision of the spring construction shown, the head 19 is held in proper position in engagement with the cushion block 21., WVhen the cushion block becomes worn, or for any other reason the operator desires to place morecushioning material under the head of the plunger, the plunger may be moved outwardly against the tension of the spring, as shown in 3, and additional cushioning members placed in position.

The head of'the plunger is provided with two or more pins 19 which serve to main tain the plunger in proper position with respect to the packing.

To permit ready insertion of the spindle, I have provided means for relievingthe tensionof'the spring 11 when the spindle is to be removed or replaced. In Fig. l'oi the drawings therspindle is shown under tension, whereas in Fig. 2, the tension oi the springis removed. For this purpose, the dept-hot the recess 8 is made greater than is necessary for the reception of the spring when the spring is undertension. A transverse slot 22 is arranged at :the back of the recess and is adapted to receivea pin 23,

whereby the bearing plate is moved forwardly to hold the spring 11 under tension. Any suitable means (not shown) may be employed to maintain the pin 23 in position. When the pin is removed and the bearing plate assumes the position in Fig. 2 of the drawings, theitension on the spindle is removed and the spindle may be readily removed or replaced. As shown, one wall 24- of the transverse slot may be inclined to permit free insertion of the pin and the corners of the bearing plate may be slightly rounded, as at 25.

i It is to be understood that the form of my invention herewith shown and described is to be taken as a. preferred example of the same 11K that various changes in the shape, size, and arrangement of parts may be re sorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. A shuttle comprising a body portion, a spindle pivotally mounted therein, the body portion being provided \vitha recess near said spindle pivot, a substantially U-shaped hearing plate ar'anged in said recess, a spring disposed within the bearing plate, plunger arranged on the outer end of the spring, said plunger being adapted to engage the spindle to maintain it under tension, and means for relieving; the tension on said spindle.

2. A shuttle comprising a body portion, a spindle pivotally mounted therein, the body portion being provided with a recess near said spindle pivot, a substantially u -shaped bearing plate arranged in said recess, said bearing plate extending outwardly beyond the spindle pivot, and being provided with elongated openings for the passage of the pivot, said bearing: plate being movable rearwardly to relieve the tension on said spindle. and means for maintaining it in forwa rd position.

in testimony whereof I aiiix my signature in presence of two witnesses.

JOSEPH H. COULTER.

itnesses J. A. BAKER, F. G. Srrnrannson. 

